Alright, let's work through 5887 times 1781 step by step
5887 × 1781 = 1781 × (5887)
+ 1781 × 7 what gives us 12467
+ 1781 × 80 that equals 142480
+ 1781 × 800 resulting in 1424800
+ 1781 × 5000 yielding 8905000

= 10484747
